Labs 1-3 terms Pt. 2

Question 1

Haller’s organ:

Answer 1

• oval organ on tarsus (legs) of ticks

- used to detect host presence

Question 2

Hypostome:

Answer 2

sclerotized, median, ventral mouthparts of ticks with recurved teeth for attachment

Question 3

Stichosome:

Answer 3

column of stichocytes surrounding and secreting into esophagus

Question 4

Tarsus:

Answer 4

terminal segment of limb in Arthropoda

Question 5

Vitellaria, vitellarium, vitelline gland:

Answer 5

glands in Platyhelminthes that produce yolk-filled vitelline cells that are carried to ootype and placed around ovum

Question 6

Vitelline duct:

Answer 6

duct carrying vitelline cells from vitellaria to ootype

Question 7

Trophozoite:

Answer 7

non-reproductive, feeding stage of Protozoa

Question 8

Trypomastigote:

Answer 8

form of Trypanosomatidae w/ flagellum from posterior to nucleus and has undulating membrane

Question 9

Undulating membrane:

Answer 9

surface pellicle is drawn up into fin-like ridge by flagellum

Question 10

Sucking disk:

Answer 10

shallow depression in ventral surface of some Protozoa w/c aid attachment to host

Question 11

Schizont:

Answer 11

cell undergoing schizogony where cytokinesis is not complete

Question 12

Scolex:

Answer 12

attachment organ of Cestoda

Question 13

Scutum:

Answer 13

dorsal plate covering ticks (Dermacentor)

Question 14

Spiracle, spiracular plate:

Answer 14

lateral opening of respiratory system of some Arthropoda

Question 15

Sporocyst:

Answer 15

early developmental stage of asexual reproduction in sporozoans, usu. enclosed w/n oocyst

Question 16

Sporoplasm:

Answer 16

amoeboid transmission stage of Myxospora

Question 17

Sporozoite:

Answer 17

daughter cell resulting from sporogony w/n oocyst

Question 18

Hydatid:

Answer 18

bladder larva of Cestoda, as internal chambers lined by germinal epithelial cells

Question 19

Oocyst:

Answer 19

cyst with sporozoites in Apicomplexa

Question 20

Larva:

Answer 20

general term for any life cycle stage between egg and adult

Question 21

Immature proglottid:

Answer 21

body segment of Cestoda with rudimentary genital organs

Question 22

Protoscolex:

Answer 22

juvenile scolex formed by asexual budding w/n hydatid larva of Cestoda

Question 23

Redia:

Answer 23

intramolluscan stage of Digeneans; has gut

Question 24

Rostellum:

Answer 24

central protrusion on scolex of some Cestoda

Question 25

Parabasal body:

Answer 25

Golgi body connected by filament to kinetosome

Question 26

Mature proglottid:

Answer 26

body segment of Cestoda with functional male and female reproductive organs

Question 27

Mehli's gland:

Answer 27

unicellular glands surrounding ootype of Platyhelminthes

Question 28

Merozoite:

Answer 28

daughter cell resulting from schizogony

Question 29

Metacercaria:

Answer 29

last larval stage form of Digenea

Question 30

Diplostomulum:

Answer 30

type of metacercaria in some Strigieoformes, living unencysted in host tissue

Question 31

Miracidium:

Answer 31

ciliated larva of Digenea that hatched from an egg

Question 32

Intestinal cecum, cecum:

Answer 32

blind-ending pouch leading off of an intestine

Question 33

Nymph:

Answer 33

larval stage of Arthropoda that resembles the adult

Question 34

Intestinal diverticulum:

Answer 34

lateral, usu. branched offshoot of part of the digestive system, usu. present in large numbers

Question 35

Kinetoplast:

Answer 35

noticeable mass of mitochondrion (DNA) of Trypanosomatidae